upgrade foreman to rails 3.2.13

This commit updates from rails 3.0.x to 3.2.x, main changes include:

• Asset pipline support
• cleanup of existing assets (javascript, css, images)

Users who uses foreman in production, make sure that you now compile
your assets, e.g...

fixes #2250 API v2 add/remove puppetclasses from hosts and hostgroups

fixes #2324 Refactoring of Host STI

Allows plugins to render a different STI-type edit form and save
the changed type. Also allows the /fact_values upload to specify
a type. Adds tests for the STI type changes.

Add localization calls to the subnets and the trenda pages.

There are other changes to the common layouts based on simple testing.

fixes #2291 undefined method 'to_a' for 75:String when creating host WITH taxonomy

Add gettext calls to the locations pages and the user pages.

These pages provide examples for using single translations:

_("Here is a simple")

single substitutions:

_("I like %s") % "pie"

and complex ones:

_("%{character"} should %{action}") % {:character => "Jar Jar Binks", :action => "be erased"}

fixes #2277 - adds spice html5 support

This also adds a newer version of the web socket proxy (where we
probably need to use an external package instead of vendor it).

we still allow users to use the old XPI based spice client (which would
ensure end to end security as well) via a 'new window' button....

fixes #2266 - API doesn't honor 'view_facts' permission

fixes #2202 - add all unassigned actions to appropriate permissions

fixes #2253 adds openstack floating ip support